Heat a large skillet over medium heat. Add the mushroom to the hot pan and add a large dash of salt. Stir the mushrooms often. After 5 minutes, the mushrooms will have released their excess water. Add the oil and cook for 2 more minutes.
8 oz cremini mushrooms, 2 TBS olive oil
Stir in the flour and cook for 2 minutes. Then add the garlic and cook for 30 seconds, stirring constantly.
1 TBS flour, 2 cloves minced garlic
Pour in about ½ a cup of the stock to deglaze the pan. Scrape off any browned bits from the bottom of the pan, then pour in the rest of the stock, the heavy cream, and the soy sauce.
2 cups vegetable stock, 1 cup heavy cream, 1 TBS soy sauce
Bring to a boil, then lower the heat to a simmer, stirring occasionally, until thickened. This'll take about 15 minutes. Taste and add salt as needed. Then set aside.
kosher salt, to taste